hi im finally returning to my acorn lathe conversion after a 6 moth sebatical . i originally had 2 nc npn sensors wired to each other then connected to one input on the original board . i downloaded the schematic for acorn and it shows one sensor to input 1 one sensor to input 2 ...
im easy on which way to wire it ,so is each sensor to its own input best practice ?
regards
npn sensor homing
Moderator: cnckeith
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Re: npn sensor homing
you can get away with one home switch for Z and X and wire them into the same input in series and use "HomeAll" for that input.
or wire it like the schematic shows and use two inputs one for each switch. and set those inputs for Z and X home respectively.
or wire it like the schematic shows and use two inputs one for each switch. and set those inputs for Z and X home respectively.
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Re: npn sensor homing
Great post here with a video on Proximity Sensors from Automationdirect.com
Goes over putting them in series:
viewtopic.php?f=63&t=3134&p=23585#p23585
Goes over putting them in series:
viewtopic.php?f=63&t=3134&p=23585#p23585
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
We can't "SEE" what you see...
Mesa, AZ
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Re: npn sensor homing
thanks
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Re: npn sensor homing
If you're strapped for inputs you can test your NPNs for series connection. I was able to wire a standard NC Z momentary switch to 2 series NPNs on my mill application to utilize a single input.
If you've got ample inputs, there's no reason to go through the extra headache to wire in series, and most will recommend that NPN don't go in series.
If you've got ample inputs, there's no reason to go through the extra headache to wire in series, and most will recommend that NPN don't go in series.
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Re: npn sensor homing
I have 3 NPN sensors wired in series on a single input and it's been working great over a year now. Saves valuable inputs if you don't have the 1616 board.
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Re: npn sensor homing
these ones we recommend wire in series just fine, i have them up and running on Homeall in series on many machines.
https://www.centroidcnc.com/centroid_di ... _gear.html
see page 14 for how to wire in series.
https://www.centroidcnc.com/centroid_di ... _guide.pdf
https://www.centroidcnc.com/centroid_di ... _gear.html
see page 14 for how to wire in series.
https://www.centroidcnc.com/centroid_di ... _guide.pdf
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
-
- Posts: 2233
- Joined: Fri May 24, 2019 8:34 am
- Acorn CNC Controller: Yes
- Allin1DC CNC Controller: No
- Oak CNC controller: No
- CNC Control System Serial Number: 7804734C6498-0401191832
- DC3IOB: No
- CNC12: Yes
- CNC11: No
- CPU10 or CPU7: No
- Location: Clearwater, FL
Re: npn sensor homing
The ones Keith recommends are the same ones I have. You can buy them much cheaper on eBay. Just FYI.